Yeah, I tried using Thorn in Crucible today with the 2.5.0.2 update. I wanted to give it a few fair go's before reporting but, it is still terrible and unmenacing. It takes 4 shots minimum (unless 2 of 3 are headshots) given its archetype. Last word is successful because of Fan Fire and extra precision damage for hip fire. Mark of the Devourer as Thorn's exotic perk was reduced in effect extensively to the point there's almost no point it exists, so now it is not even on par with damage output of the Exotic opposite it in year one (TLW is still kinda broken yet still fair, but not the point) when it came to being. TL;DR Mark of the Devourer needs a slight buff. Not to Year 1, perhaps, but it needs one if you're going to reintroduce it year 3 as this great thing.